Avast

https://www.avast.com/en-us/faq.php?article=AVKB131

https://forum.avast.com/index.php?board=36.0

http://files.avast.com/files/documentation/techdoc-avast-linux-en.pdf

https://www.avast.com/linux-server-antivirus

http://files.avast.com/files/marketing/materials/datasheets/en/v2014/avast_linux_2014_en.pdf

sudo -i
echo "deb http://deb.avast.com/lin/repo debian release" >> /etc/apt/sources.list
wget http://files.avast.com/files/resellers/linux/avast.gpg
apt-key add avast.gpg
apt-get update
apt-get check
apt-get -s install avast
apt-get install avast
/bin/scan -h
/bin/scan -v